copperweld - ehs, 30% conductivity

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MESSENGERS FOR AERIAL CABLE
COPPERWELD - EHS, 30% CONDUCTIVITY
MES(size)CUWELD
Size
O.D.
Stranding
Breaking Strength
1/4"
.242
7 #12
5,783 lbs.
128
MES5/16CUWELD
5/16"
.306
7 # 10
9,196 lbs.
204
MES3/8CUWELD
3/8"
.385
7 # 8
13,890 lbs.
324
MES1/2CUWELD
1/2"
.486
7 # 6
20,460 lbs.
515
MES9/16CUWELD
9/16"
.546
7 # 5
24,650 lbs.
650
MES1/4CUWELD
Wgt./Mft.
GALVANIZED - EHS
MES(size)EHSGAL
MES1/4EHSGAL
Size
O.D.
Stranding
Breaking Strength
Wgt./Mft.
1/4"
.242
7 # 12
6,650 lbs.
121
MES5/16EHSGAL
5/16"
.306
7 # 10
11,200 lbs.
205
MES3/8EHSGAL
3/8"
.385
7 # 8
15,400 lbs.
273
MES1/2EHSGAL
1/2"
.486
7 # 6
26,900 lbs.
517
STAINLESS STEEL - TYPE “302”
MES(size)SS
Size
O.D.
Stranding
Breaking Strength
Wgt./Mft.
MES1/4SS
1/4"
.242
7 # 12
8,500 lbs.
135
MES3/8SS
3/8"
.385
7 # 8
18,000 lbs.
282
MES1/2SS
1/2"
.486
7 # 6
33,700 lbs.
535
NOTE: The data shown is approximate and subject to standard industry tolerances.
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
88
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877-623-9473
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800-624-3572
Houston, TX
800-231-9473
Made in the USA
Manufacturing quality. Delivering service.
ICEA Method 1 (“K-1”)
COLOR CODES
(Colored Compounds with Stripes)
ICEA Method 2 (“K-2”)
(Colored Compounds with Stripes)
Conductor
Number
Conductor
Color
Stripe Color
Conductor
Number
Conductor
Color
Stripe Color
1
Black
-
1
Black
-
2
White
-
2
Red
-
3
Red
-
3
Blue
-
4
Green
-
4
Orange
-
5
Orange
-
5
Yellow
-
6
Blue
-
6
Brown
-
7
White
Black
7
Red
Black
8
Red
Black
8
Blue
Black
9
Green
Black
9
Orange
Black
10
Orange
Black
10
Yellow
Black
11
Blue
Black
11
Brown
Black
12
Black
White
12
Black
Red
13
Red
White
13
Blue
Red
14
Green
White
14
Orange
Red
15
Blue
White
15
Yellow
Red
16
Black
Red
16
Brown
Red
17
White
Red
17
Black
Blue
18
Orange
Red
18
Red
Blue
19
Blue
Red
19
Orange
Blue
20
Red
Green
20
Yellow
Blue
21
Orange
Green
21
Brown
Blue
ICEA Method 4
(Black Compound with Numbers)
Conductor Number
Printing
Conductor Number
Printing
1
1-One
12
12-Twelve
2
2-Two
13
13-Thirteen
3
3-Three
14
14-Fourteen
4
4-Four
15
15-Fifteen
5
5-Five
16
16-Sixteen
6
6-Six
17
17-Seventeen
7
7-Seven
18
18-Eighteen
8
8-Eight
19
19-Nineteen
9
9-Nine
20
20-Twenty
10
10-Ten
21
21-Twenty-One
11
11-Eleven
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
www.servicewire.com
Made in the USA
Phoenix, AZ
877-623-9473
Culloden, WV
800-624-3572
7/2/12
Houston, TX
800-231-9473
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Manufacturing quality. Delivering service.
MINIMUM BENDING RADII FOR CABLES
This section contains the minimum values for the radii to which cables may be bent for permanent training during installation. These limits do not apply to conduit bends, sheaves, or other curved surfaces around
which the cable may be pulled under tension while being installed. Larger radii bends are required for such
conditions. The minimum radii specified refers to the inner surface of the cable and not to the axis of the conductor.
POWER & CONTROL CABLES WITHOUT METALLIC SHIELDING OR ARMOR
Overall Diameter of Cable (Inches)
Insulation
Thickness
(Inches)
1.000" & less
1.001" - 2.000"
2.001" & over
MINIMUM BENDING RADIUS AS A MULTIPLE OF CABLE DIAMETER
.169" & less
45 6
POWER & CONTROL CABLES WITH METALLIC SHIELDING &/OR ARMOR
Minimum Bending
Radius as a Multiple of
Cable Diameter
Cable Description
Interlocked Armor (with non-shielded cond.)
7
Metallic Tape Shielded (conductors or cable)
12/7 (1)
(1) 12 x individual shielded conductor diameter, or 7 x overall cable diameter, whichever is greater
Above tables per ICEA S-95-658/NEMA WC70, Appendix F
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
90
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7/2/12
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877-623-9473
Culloden, WV
800-624-3572
Houston, TX
800-231-9473
Made in the USA
Manufacturing quality. Delivering service.
MAXIMUM PULLING TENSIONS
1. Pulling Eye
Maximum pulling tension for use with a pulling eye can be determined from the following
formula:
Tmax = k x n x CA Where: k = .008 for copper
.006 for aluminum
n = number of conductors
CA = conductor area of one conductor,
in circular mils
Tmax should not exceed 6,000 lb. for a single conductor cable.
Tmax should not exceed 10,000 lb. for 2 or more conductors.
2. Pulling Grip
Maximum pulling tension when using a basket type grip should not exceed 1,000 lb. or the
value determined in the above formula, whichever is smaller.
NOTE 1: Do not exceed the load stated by the manufacturer of the pulling device.
NOTE 2: Do not consider the area of neutral or grounding conductors in cable(s) when calculating maximum pulling tensions.
NOTE 3: Pulling tensions should be reduced by 20% to 40% when several conductors are
being pulled simultaneously (in parallel) since the tension will not be distributed evenly among conductors.
NOTE 4: The above procedure pertains to straight pulls, and does not consider side wall loading.
See pages 81-84 for additional details.
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
91
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Made in the USA
Phoenix, AZ
877-623-9473
Culloden, WV
800-624-3572
7/2/12
Houston, TX
800-231-9473
Manufacturing quality. Delivering service.
Sheave Selection Chart
Maximum Cable Diameter per Sheave
Sheave
diameter
(inches)
6
Single/multi
Conductor power
(inches)
0.375
Armor
(inches)
0.214
Control
Cable
(inches)
0.150
Shielded 600 V
Power
(inches)
0.107
MV Power
Shielded
(inches)
0.125
12
0.984
0.563
0.940
0.281
0.328
18
1.750
1.000
0.700
0.500
0.583
24
2.453
1.402
0.981
0.701
0.818
Examples of Minimum Bend Radii
Multiply
Sample
diameter
Calcuation
Resulting
Minimum
Bend Radii
Less than 1 inch
4
.75 in. OD
4 x .75=
3 in. radius
1 to 2 inches
5
1.5 in. OD
5 x 1.5=
7.5 in. radius
2 in. or larger
6
3.0 in. OD
6 x 3=
18 in. radius
Interlock Armor
7
3.0 in. OD
7 x 3=
21 in. radius
600 V
Cable
Pull considerations:
1. Plan direction of cable pulls to minimize tension by putting as many bends as possible early in the pull.
2. Proper setups cost initially, but will save by creating safer and easier pulls.
3. Published allowable conductor tensions are for STRAIGHT PULLS ONLY.
4. Published allowable equipment loading does not apply to the SWP of the cable pull.
Notes: 1.) You must select the sheave by radius NOT diameter. 2.) Sidewall limits for most cables are 500 lbs.
per foot radius maximum. 3.) All tensions on a cable pull are additive.
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
92
www.servicewire.com
7/2/12
Phoenix, AZ
877-623-9473
Culloden, WV
800-624-3572
Houston, TX
800-231-9473
Made in the USA
Manufacturing quality. Delivering service.
Cable Installation Tips
Sheave strength ratings are for straight pulls only. Always refer to allowable tensions for each radius.
Most single and conveyor sheaves are rated at 4000 lbs or more, but these ratings can only be used for the
pulling rope, not the cable. Single sheaves are best for guiding and supporting cable. For cable bends use
conveyor sheave assemblies to control sidewall pressure.
24"
6"
18"
12"
Cable damage can occur when too small of a radius wheel is used.
NOTE: When using conveyor sheave equipment, it is critical for set up that the lead and exit sheaves not
have a bending radius smaller than the center wheels. (see below left)
Danger
Too small!
Don't confuse the diameter of the
sheave with the radius.
The radius MUST match the
cable's bending radius
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
93
www.servicewire.com
Made in the USA
Phoenix, AZ
877-623-9473
Culloden, WV
800-624-3572
7/2/12
Houston, TX
800-231-9473
Manufacturing quality. Delivering service.
Cable Installation Tips
Stringing Aerial cables on poles (this applies to pulling in or out)
Wrong:
This method can cause sidewall pressure and crush the cable.
Right:
Create a smooth radius with sheaves using temporary
messengers and proper spacing.
Anchor spud
or Line truck
This method will support and distribute all bearing loads for successful cable installation.
Loading cable into tray
Wrong:
This method can cause sidewall pressure and crush the cable at the leading point. Lack of rollers will increase
drag creating more tension.
Right:
Rollers
Use a large multi-wheel conveyor to distribute sidewall pressure. Lead and exit wheels must meet
minimum cable bend. Use tray rollers to eliminate cable drag.
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
94
www.servicewire.com
7/2/12
Phoenix, AZ
877-623-9473
Culloden, WV
800-624-3572
Houston, TX
800-231-9473
Made in the USA
Manufacturing quality. Delivering service.
Tray Roller Assembly
• It is important that these assemblies be aligned and secure.
• Shifting of roller assemblies can cause the cable to climb over sheave edge and cut the cable.
• All rollers to be free rolling to eliminate friction.
• Space tray rollers to minimize cable drag.
• Use greater bending radii than allowed.
For cable
loading and
corners
Good
Good
Better
Best
but cable
for tray
reduces
with more
can drag
defection
cable drag
elevation
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available industry data. However no warranties, either expressed or implied, are made as to the accuracy or completeness of any
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
liability whatsoever in connection with this information.
95
www.servicewire.com
Made in the USA
Phoenix, AZ
877-623-9473
Culloden, WV
800-624-3572
7/2/12
Houston, TX
800-231-9473
Manufacturing quality. Delivering service.
Manufacturing quality. Delivering service.
USEFUL CONVERSION FACTORS
AWG to METRIC
DIAMETER
AWG
MM2
22
20
18
16
14
12
10
9
8
6
4
3
2
1
1/0
2/0
3/0
4/0
0.32
0.52
0.82
1.31
2.08
3.31
5.26
6.63
13.20
13.20
21.20
26.70
33.60
42.40
53.50
67.40
85.00
107.00
CMIL
INCHES
640
1020
1620
2580
4110
6530
10380
13090
16510
26240
41740
52620
66360
83690
105600
133100
167800
211600
0.029
0.036
0.046
0.058
0.073
0.092
0.116
0.130
0.146
0.184
0.232
0.260
0.292
0.332
0.373
0.419
0.470
0.528
DIAMETER
KCMIL
250
300
350
400
500
550
600
700
750
900
1000
MM2
126
152
177
202
253
278
304
354
380
456
506
CMIL
250000
300000
350000
400000
500000
550000
600000
700000
750000
900000
1000000
INCHES
0.575
0.630
0.681
0.728
0.813
0.855
0.893
0.964
0.998
1.094
1.152
MISCELLANEOUS CONVERSIONS
UNIT
MULTIPLY BY
TO GET
Centimeters
0.3937
Inches
Circular Mils
0.7854
Square Mils
5.0671x10-4
Square Millimeters
Cubic Centimeters
0.0610
Cubic Inches
Cubic Inches
16.386
Cubic Centimeters
Inches
2.54
Centimeters
Kilograms
2.2046
Pounds
Kilograms/Kilometers
0.6720
Pounds/1000ft.
Kilometers
0.6214
Miles
3280.8
Feet
Meters
3.2808
Feet
Mils
0.001
Inches
0.0254
Millimeters
Miles
0.03937
Kilometers
Millimeters
0.03037
Inches
Ohms/Kilometer
0.3048
Ohms/1000ft.
Ohms/1000ft.
3.2808
Ohms/Kilometer
Pounds
0.4536
Kilograms
Pounds/1000ft.
1.4881
Square Centimeters
1.55x10
Square Mils
1.97x10
Circular Mils
1.2732x106
Circular Mils
645.16
Square Millimeter
1973.5
Circular Mils
Kilograms/Kilometer
5
5
Square Inches
Square Millimeter
Service Wire Company believes the information presented herein is, to the best of our knowledge, true and accurate based on currently
available
data. However no
eitheris
expressed
are made as
to the accuracy
or completeness
of any
All
dataindustry
and information
inwarranties,
this section
basedoronimplied,
information
currently
available
and is believed
information contained herein. Consequently, Service Wire Company makes no guarantee of the results and assumes no obligation or
to
bewhatsoever
reliable.inService
Wire
liability
connection with
thisCompany
information. makes no guarantee of the results and assumes no
obligation or liability whatsoever in connection with this information.
2008
7/13/12
1
www.servicewire.com
www.servicewire.com
Culloden, WV
Phoenix, AZ
877-623-9473
Phoenix, AZ
Culloden, WV 800-624-3572
Houston, TX
Houston, TX
800-231-9473
Pittsburgh, PA
Made in the USA